Internal-combustion engine



. Oct. 12 1926; 1,603,173 E. A. WATTS INTERNAL COMBUSTION ENGINE F iled Dec. 6. 1924 I 2 Sheets-Sheet 1 INVENTORI ZZMfR A. W477i? ATTORNEY.

9 F: F: F: G E M Oct. 12 ,1926. v

E. A. W TTS I 4 ,603,173

INTERNAL COMBUSTION ENGINE Filed Dec. 6, 1924 2 Sheets-Sheet 2 V mag YINVENTO [AMER 19.14447 A TTORNEYS.

tween the rings in the spaces 8,9 and 10 decreases inthe order named, it will be apparent that as the compressed gas around the portion 10 of the cylinder comes opposite to the groove 15 and aperture 14;, a certain amount of compressed gas will pass through the passageway 16 and into the chamber 25. As each space is uncovered, such as 9and- 8, additional compressed gas will be delivered into this chamber.

A few drops of oil have meanwhile been forced into the chamber 28 prior to the admission of pressure accumulating at the bottom of the chamber 25 beneath the apron 27. The drops of oil accumulating beneath the apron or in the chamber are subjected to the pressure therein and become atomized when the pressure is suddenly released upon the return stroke of .the'piston which permits the pressure to escape and the oil to be carried with it in atomized condition to the walls 0 the piston.

Thus, whenthe piston reaches a point where the space 9 is about opposite the openmg 14 and groove 15, the pressures will successively begin to decrease, permitting the pent-up higher pressure to escape from the cup 25 and passageway 16 along with the oil which, is thus sprayed on the piston wall. The point at which this release begins totake place depends upon how light the engine is running; the lighter it is runthe earlier the discharge of the oil will take place in the stroke. It will thus be seen that according to my method I build up successive pressures in the chamber having a few drops of oil and carry the oil out of the chamber when the pressure is released, atomizing the oil simultaneously due to the high pressure to which it is subjected.

Large engines of this character frequently have pressures f 250 lbs. or'more to the square inch.

It will be understood that I desire to comprehcnd within my invention such modifications as may be necessary to adapt it to varying conditions and uses.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patentof the United States, is 1. In an internal'combustion engine, a cylinder, a piston having piston rings working .herein so arranged that the pressure between the piston rings decreases from the front of the piston towards the rear, an exit passageway in the wall of the cylinder leading to a reservoir outside of the cylinder, said passageway being located near the rear end of the cylinder, a reservoir, means of introducing oil theretoand of receiving pressure from the cylinder between the piston rings, whereby as the spaces between the piston rings progressively pass by the orifice in the cylinder wall, gases are admitted under increasing pressure into said chamber, and

' upon the return of the piston, without completely uncovering the orifice in the cylinder wall before the return of the piston, the gases are progressively allowed to escape with oil which was carried therewith and atomized thereby.

2. In an internal combustion engine, a cyl-' inder, a piston having piston rings working therein 'so arranged that the pressure between the piston rings decreases from the frontof the piston towards the rear, an exit passageway in the wall of the cylinder leading to a reservoir outside of the cylinder, said passageway being located near therear end of the cylinder, a reservoir, means of introducing oil thereto and of receiving pressure from the cylinder between. the piston rings, whereby as the spaces between the piston rings progressively pass by the orifice in the cylinder wall, gases are admitted under increasing pressure into said chamber, and upon the return of the piston, Without completely uncovering the orifice in the cylinder wall before-the return of the piston, the gases are progressively allowed to escape with oil which was carried therewith and atomized thereby, and means in said reservoir over the orifice through which the gases enter to deflect said gases downwardly on the oil in the bottom of the reservoir.

3. In combination in an internal combust on engine, a lubricating system with an internal combustion engine cylinder, a'cylinder, a piston having spaced rings, said cylinder having .an orifice, a grooveconnected therewith near the rear end thereof, 7

a tubular member leading from said orifice o the exterior-of the cylinder, a reservoir mounted thereon, means of forcing lubricant into said reservoir, a check valve to prevent the escape of lubricant out ofthe reservoir through the feed line, whereby as pressure is admitted progressively into said reservoir and progressively allowed tov exhaust, the oil will be" atomized and carried out on to the piston and cylinder wall, and a'collar mounted around the orifice through which the gases enter into the reservoir, and a depend ing apron in said reservoir over said collar, vertically and laterally spaced therefrom but relatively closely adjacent'thereto.

4L. Ina lubricator, a tubular member having a relatively minute passageway therethrough communicating with a minute passageway and groove in a cylinder wall on the interior thereof, a cup-shaped member threaded on the outerend ofsaid tubular member, an orifice in the bottom of said cup opening into a. second cup, a second cup, a collar adjacent theorifice, said collar being located within the second cup,- a

threaded plug closing the .open end. of the second cup and having a depending apron extending over and around said, collar but spaced therefrom, an oil pipe leading. into said second cup and a ball check valve in said oil line, whereby as a piston over the groove and orifice in the cylinder, pressure will be progressively admitted through' S211Cl tubular member into said second cup,

oil already having been forced therein in der, the pressure and oil will make their exit on to the cylinder Wall and piston.

1 In testimony whereof I aflix my signature.

ELMER A; WATTS. 

